HP 39g Graphing Calculator - Manual (Page 155)

MOD
%CHANGE
%TOTAL
RAD-^DEG
ROUND
Modulo. The remainder of value I lvalue!,
value! MOD value!
Example
9 MOD 4 returns 1
X percent of y, that is, xjl 0 0 *y.
% ( x , y )
Example
% ( 2 0 , 5 0 ) returns 10
Percent change from x to y, that is, \QQ(y-x)lx.
%CHANGE(x,y)
Example
% C H A N G E ( 2 0 , 5 0 ) returns 150
Percent total: (100)yx. What percentage of x is y.
%TOTAL(x,y
Example
%TOTAL (2 0 , 5 0 ) returns 2 50
Radians to degrees. Converts value from radians to degrees.
RAD^DEG (value)
Example
RAD^DEG(Tt) returns 18 0
Rounds value to decimal places. Accepts complex numbers.
ROUNDfvaZwe, places)
Round can also round to a number of significant digits as
showed in example
2
.
Examples
R O U N D ( 7 . 8 6 7 6 , 2 ) returns 7 . 6 8
ROUND ( 0 . 0 0 3 6 7 5 7 , - 3 ) returns 0 . 0 0 3 6 8
Using mathematical functions 10-17